KR20080028679A - Printed circuit board and display device having same - Google Patents

Abstract

The printed circuit board includes an insulating layer and an antenna formed on the insulating layer. The insulating layer has a base portion and protrusions protruding from the side portions of the base portion, and an antenna is formed on the protrusion portion. Since the protrusion is disposed outside the display panel, the antenna is exposed to the outside of the display panel. Accordingly, noise generation of the antenna part due to the high frequency generated during the driving of the display device may be prevented, data transmission rate using the wireless communication network may be improved, and service quality may be improved.

Description

Printed circuit board and display device having same {PRINTED CIRCUIT BOARD AND DISPLAY APPARATUS HAVING THE SAME}

1 is a plan view illustrating a printed circuit board according to an exemplary embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line II ′ of FIG. 1.

3 is a plan view illustrating the first antenna illustrated in FIG. 1.

4 is a cross-sectional view illustrating another example of the second ground layer illustrated in FIG. 2.

FIG. 5 is a plan view illustrating the third antenna illustrated in FIG. 1.

FIG. 6 is an exploded perspective view illustrating a display device having the printed circuit board shown in FIG. 1.

FIG. 7 is a plan view illustrating a coupling relationship between a printed circuit board and a liquid crystal display panel illustrated in FIG. 6.

FIG. 8 is a perspective view illustrating the top chassis illustrated in FIG. 6.

9 is a plan view of the display device illustrated in FIG. 6.

FIG. 10 is a side view illustrating the display device illustrated in FIG. 9.

FIG. 11 is a cross-sectional view taken along the line II-II ′ of FIG. 9.

* Description of the symbols for the main parts of the drawings *

100-printed circuit board 110, 160-insulation layer

120-Circuit wiring sections 131, 132, 133, 134, 135-Antenna

140, 145-Connection line 181-Main connector

182-Inspection Connector 182-Sub Connector

The present invention relates to a printed circuit board and a display device having the same, and more particularly, to a printed circuit board and a display device having the same that can improve the quality of service.

In general, a liquid crystal display device is a display device that displays an image using a liquid crystal having optical and electrical characteristics such as anisotropic refractive index and anisotropic dielectric constant. Such liquid crystal displays are thinner and lighter than other display devices such as CRTs and PDPs, and have low driving voltages and low power consumption, and thus are widely used throughout the industry.

The liquid crystal display device is applied to various image processing apparatuses such as a television, a notebook computer, a monitor, and displays data processed in the image processing apparatus. Recently, with the development of communication technology, an image processing apparatus capable of transmitting and receiving data through a wireless communication network has been developed.

That is, the image processing apparatus capable of wireless data communication has an internal antenna and transmits and receives data from an external device through the antenna. In general, the antenna is located adjacent to a circuit portion for driving the image processing apparatus. For example, in the case of a notebook computer, an antenna is located on the side of a keypad for inputting data or commands by a user's operation, and below the keypad, circuit sections for controlling the image processing apparatus are provided. Since the circuit parts generate high frequency, they cause noise to the antenna. For this reason, since the transmission rate and reception rate of wireless data communication fall, service quality falls.

An object of the present invention is to provide a printed circuit board that can improve the quality of service of wireless data communication.

It is also an object of the present invention to provide a display device having the above-described printed circuit board.

According to one aspect of the present invention, a printed circuit board includes a base part, an insulating layer, a circuit wiring part, at least one antenna, and a connection wiring part.

The insulating layer includes a base portion and at least one protrusion formed to protrude from the side portion of the base portion. The circuit wiring part is formed in the base part, and receives a first signal from the outside to output a second signal for driving the external device. An antenna is formed in the protrusion part and insulated from the circuit wiring part, and transmits and receives data through a wireless communication network. It is formed in the base portion electrically connected to the antenna, and includes a connection wiring for transmitting and receiving data from the antenna.

The printed circuit board is mounted on the base part to be electrically connected to the circuit wiring part, and receives a first signal and provides the first signal to the circuit wiring part, and is mounted on the base part and mounted on the circuit wiring part. The apparatus may further include a test connector electrically connected and receiving a test signal for inspecting the external device from an external device and providing the test signal to the circuit wiring unit.

The connection wiring portion is electrically connected to any one of the main connector and the test connector.

The printed circuit board may include a plurality of antennas, the insulating layer may include a plurality of protrusions, and the antennas are formed on the protrusions, respectively. The printed circuit board may further include a sub connector mounted on one of the protrusions and electrically connected to an antenna formed on the protrusion, and the antenna connected to the sub connector is insulated from the connection wiring part.

In addition, the display device according to one feature for realizing the above object of the present invention comprises a display panel and a first printed circuit board.

The display panel receives a control signal corresponding to an image and displays the image. The first printed circuit board includes a base part, an insulating layer, a circuit wiring part, at least one antenna, and a connection wiring part. The insulating layer includes a base portion and at least protrusions formed to protrude from the side portions of the base portion. The circuit wiring part is formed in the base part, and receives an image signal corresponding to the image from the outside and outputs the control signal. The antenna is formed in the protrusion part and insulated from the circuit wiring part, and transmits and receives data through wireless communication. The connection wiring part is formed in the base part, and is electrically connected to the antenna to transmit and receive data from the antenna.

The display device may include a container for accommodating the display panel and an edge of the display panel to guide the position of the display panel, and an insertion groove into which the protrusion is inserted, to be combined with the container. It further includes a top chassis for fixing the display panel. The protrusion is positioned at an upper end or an upper side of the display panel in plan view.

In addition, a display device according to one aspect for realizing the above object of the present invention includes a display panel, a gate driver, and a data printed circuit board.

The display panel receives a data signal and a gate signal corresponding to the image and displays the image. The gate driver receives a gate control signal corresponding to the image and outputs the gate signal to the display panel. The data printed circuit board generates the gate control signal and the data control signal in response to an image signal corresponding to the image, and is electrically connected to the display panel. In detail, the data printed circuit board includes an insulating layer, a circuit wiring part, at least one antenna, and a connection wiring part. The insulating layer includes a base portion and at least one protrusion formed to protrude from the side portion of the base portion. The circuit wiring part is formed in the base part, and receives the video signal to output the gate control signal and the data control signal. The antenna is formed in the protrusion part and insulated from the circuit wiring part, and transmits and receives data through wireless communication. The connection wiring part is formed in the base part, and is electrically connected to the antenna to transmit and receive data with the antenna.

According to the printed circuit board and the display device having the same, the antenna is disposed outside the display panel to be exposed to the outside, and wiring layers are not formed on the upper and lower portions of the antenna. Accordingly, the communication reception rate of the antenna can be improved, so that the quality of service can be improved.

Hereinafter, with reference to the accompanying drawings, it will be described in detail the present invention.

1 is a plan view illustrating a printed circuit board according to an exemplary embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line II ′ of FIG. 1.

1 and 2, the printed circuit board 100 of the present invention includes a first insulating layer 110, a circuit wiring part 120, an antenna part, and a connection wiring part.

The first insulating layer 110 is made of an insulating resin material such as epoxy resin, and consists of a base portion 111 and a plurality of protrusions protruding from the base portion 111. The base 111 has a plate shape, and the plurality of protrusions include first to fifth protrusions 112, 113, 114, 115, and 116. The first to fifth protrusions 112, 113, 114, 115, and 116 are spaced apart from each other and protrude from the side of the base 111.

The circuit wiring part 120 is formed in the base part 111 and receives a first signal and outputs a second signal. Here, the second signal is a signal for driving an external device electrically connected to the circuit wiring unit 120, and includes a control signal for controlling the external device and data processed by the external device. The circuit wiring unit 120 may include first and second circuit wiring layers 121 and 122, and the first insulating layer may be disposed between the first circuit wiring layer 121 and the second circuit wiring layer 122. 110). Although not shown in the drawing, the first and second circuit wiring layers 121 and 122 are electrically connected to the semiconductor chip mounted on the first insulating layer 110. The semiconductor chip receives the first signal through the circuit wiring unit 120 and outputs the second signal to the circuit wiring unit 120.

The antenna unit is formed in the first to fifth protrusions 112, 113, 114, 115, and 116 and transmits and receives a radio signal through a wireless communication network. In detail, the antenna unit is formed of a conductive metal material and includes first, second, third, fourth, and fifth antennas 131, 132, 133, 134, and 135.

In this embodiment, the antenna unit is composed of five antennas (131, 132, 133, 134, 135), the number of the antenna is the size of the printed circuit board 100 and of the printed circuit board 100 It can be increased or decreased depending on the design.

The first, second, third, fourth, and fifth antennas 131, 132, 133, 134, and 135 may have the first, second, third, fourth, and fifth protrusions 112, 113, and 114. And 115 and 116, respectively. In this embodiment, the first insulating layer 110 has five protrusions 112, 113, 114, 115, and 116, but the number of the protrusions is formed equal to the number of antennas.

The first to fifth antennas 131, 132, 133, 134, and 135 are insulated from the first and second circuit wiring layers 121 and 122, and the first to fifth antennas 131, 132, and 133. , Upper and lower portions 134 and 135 are not formed of conductive metal layers, for example, the first and second circuit wiring layers 121 and 122. That is, the first to fifth antennas 131, 132, 133, 134, and 135 are formed on the first to fifth protrusions 112, 113, 114, 115, and 116, respectively, so that the circuit wiring unit ( 120, minimize the impact. Accordingly, noise generation of the wireless signal transmitted and received through the first to fifth antennas 131, 132, 133, 134 and 135 is reduced.

In this embodiment, the first, second, third, fourth and fifth antennas 131, 132, 133, 134, 135 have the same structure. Therefore, in the following description of the structure of the first, second, third, fourth and fifth antennas 131, 132, 133, 134, 135, the first antenna 131 may be used as an example. Will be explained.

3 is a plan view illustrating the first antenna illustrated in FIG. 1.

1 to 3, the first antenna 131 is formed on the first protrusion 112. The first antenna 131 may include a first line 131a, a second line 131b extending from a first end of the first line 131a, and a second end of the first line 131a. A third line 131c extending in parallel with the second line 131b and a branch branched from the first line 131a and positioned between the second line 131b and the third line 131c A fourth line 131d, a fifth line 131e extending in the same direction as the first line 131a from one end of the fourth line 131d, and one end of the fifth line 131e The sixth line 131f extends in parallel with the fourth line 131d.

The first antenna 131 is electrically connected to the connection wiring part. The connection wiring part is electrically connected to the first, second, fourth and fifth antennas 131, 132, 134, and 135 so that the first, second, fourth and fifth antennas 131, 132, Receiving the wireless data from the 134, 135, and transmits the data to be transmitted to the outside through the wireless communication network to the first, second, fourth and fifth antennas (131, 132, 134, 135).

The connection wiring part includes first and second connection lines 140 and 145. The first connection line 140 is electrically connected to the first and fourth antennas 131 and 134 to transmit and receive data from the first and fourth antennas 131 and 134. The second connection line 145 is electrically connected to the second and fifth antennas 132 and 135 to transmit and receive data from the second and fifth antennas 132 and 135.

The printed circuit board 100 may include first and second ground layers 151 and 152 for grounding the connection wiring portion, a third ground layer 153 for grounding the circuit wiring portion 120, and the first wiring layer. The semiconductor device further includes a second insulating layer 160 interposed between the first circuit wiring layer 121 and the third ground layer 153.

The first and second ground layers 151 and 152 may be disposed to correspond to the first and second connection wiring units 140 and 145, and lower portions of the first and second connection wiring units 140 and 145. It is formed at the top, respectively.

Referring to FIG. 2, the first ground layer 151 is formed on the first insulating layer 110, is located on the same layer as the second circuit wiring layer 122, and is spaced apart from the second circuit wiring layer 122. Insulated from each other. The second ground layer 152 is formed on the same layer as the first circuit wiring layer 121 and is insulated from and spaced apart from the first circuit wiring layer 121. The third ground layer 153 is formed on an upper surface of the first insulating layer 110 and interposed between the first circuit wiring layer 121 and the second circuit wiring layer 122. The second circuit wiring layers 121 and 122 are shielded.

The second insulating layer 160 is formed to correspond to the first insulating layer 110 on the first insulating layer 110. That is, the second insulating layer 160 covers the first connection line 140 and the third ground layer 153 on the base portion 111 and the first connection line 140. The second ground layer 152, the third ground layer 153, and the first circuit wiring layer 121 are insulated from each other. Here, the first circuit wiring layer 121, the first antenna 131, and the second ground layer 152 are formed on an upper surface of the second insulating layer 160. Although not shown, the second to fifth antennas 132, 133, 134, and 135 are also formed on the top surface of the second insulating layer 160, similarly to the first antenna 131.

In this way, the first connection line 140 is insulated from the first ground layer 151 by the first insulating layer 110, and the second ground layer (by the second insulating layer 160). 152). Although not shown in the drawing, the second connection line 145 (see FIG. 1) is formed on the same layer as the first connection line 140 and is covered by the second insulating layer 160. Accordingly, the second connection line 145 is insulated from the first ground layer 151 by the first insulating layer 110, similarly to the first connection line 140, and the second insulating layer Insulated from the second ground layer 152 by 160

Although not shown in the drawing, the second insulating layer 160 is partially removed to form a via hole, and the first circuit wiring layer 121 and the second circuit wiring layer 122 are electrically connected through the via hole. do.

For reference, FIG. 3 illustrates the second ground layer 152 formed on the first connection line 140 to clearly show the connection relationship between the first antenna 131 and the first connection line 140. ) Is omitted.

As such, since the first and second connection wiring units 140 and 145 are shielded by the first and second ground layers 151 and 152, signal interference from the circuit wiring unit 120 may be reduced. Can be.

4 is a cross-sectional view illustrating another example of the second ground layer illustrated in FIG. 2.

Referring to FIG. 4, the second ground layer 154 is formed on the same layer as the first circuit wiring layer 121 and spaced apart from the first circuit wiring layer 121 to be insulated from each other. That is, the second ground layer 154 is formed on an upper surface of the second insulating layer 160 to be insulated from the first connection line 140 and formed to correspond to the first connection line 140. Although not shown, the second ground layer 154 is formed to correspond to the second connection line 145 (see FIG. 1).

Both ends of the second ground layer 152 extend to the side portions of the first and second connection lines 140 and 145. That is, both ends of the second ground layer 152 extend through the second insulating layer 160 from the top surface of the second insulating layer 160 toward the first insulating layer 110. In one embodiment of the present invention, a portion of the second ground layer 152 extending toward the first insulating layer 110 penetrates through the first insulating layer 110 to be in contact with the first ground layer 151. . Accordingly, the first and second connection lines 140 and 145 are located in a space defined by the first and second ground layers 151 and 152 when viewed in cross section.

Although not shown in the drawing, the second ground layer 151 partially extends toward the first insulating layer 110 at a portion where the first and second connection lines 140 and 145 are connected to the antenna unit. Removed to maintain insulation with the first and second connection lines 140, 145.

Referring back to FIG. 2, the printed circuit board 100 may include a protective layer 170 that protects the first circuit wiring layer 121, the second ground layer 152, and the first antenna 131. It is further provided. The protective layer 170 is formed on the second insulating layer 160, and covers the first circuit wiring layer 121, the second ground layer 152, and the first antenna 131 to cover the first insulating layer 160. Corrosion of the first circuit wiring layer 121, the second ground layer 152, and the first antenna 131 is prevented. Although not shown, the protective layer 170 covers the second to fifth antennas 132, 133, 134, and 135 to protect the first to fifth antennas 132, 133, 134, and 135. do.

In addition, the printed circuit board 100 further includes a main connector 181 and an inspection connector 182 mounted on the base 111. The main connector 181 is mounted on the base part 111 and electrically connected to the circuit wiring part 120, and receives the first signal and provides the first signal to the circuit wiring part 120. The test connector 182 is mounted on the base part 111 and electrically connected to the circuit wiring part 120. The test connector 182 receives a test signal for testing an external device driven by the second signal and provides the test signal to the circuit wiring unit 120.

The test connector 182 is electrically connected to the first and second connection lines 140 and 145 and electrically connected to a central processing unit (not shown) for storing and processing the wireless data. It transmits and receives data between the second connection lines 140 and 145 and the CPU.

In this embodiment, the first and second connection lines 140 and 145 are electrically connected to the test connector 182, but may be electrically connected to the main connector 181. When the first and second connection lines 140 and 145 are electrically connected to the main connector 181, the main connector 181 is connected to the central processing unit to connect the first and second connection lines 140. 145 and transmit and receive data between the central processing unit.

FIG. 5 is a plan view illustrating the third antenna illustrated in FIG. 1.

1 and 5, the printed circuit board 100 further includes a sub connector 190 mounted on the third protrusion 114 and electrically connected to the third antenna 133. In this embodiment, the printed circuit board 100 includes one sub connector 190, but the number of the sub connectors increases or decreases according to the number of antennas and the size of the printed circuit board 100. You may.

In one example of the present invention, the sub connector 190 is provided in the third protrusion 114, but in any one of the first, second, fourth and fifth protrusions 112, 113, 115, and 116. It may be provided.

The sub connector 190 is electrically connected to an external data processor, for example, the central processor, through the coaxial cable 195, and transmits and receives data between the third antenna 133 and the data processor. . Accordingly, since the printed circuit board 100 can minimize the connection wiring part for data transmission and reception with each antenna 131, 132, 133, 134, 135, the connection wiring part increases with the number of antennas, and the An increase in the size of the printed circuit board 100 can be prevented. In addition, the sub connector 190 may be electrically connected to an external device other than a device on which the printed circuit board 100 is mounted. Accordingly, an external device that does not have a wireless communication antenna may also perform wireless data communication through the third antenna 133.

FIG. 6 is an exploded perspective view showing a display device having the printed circuit board shown in FIG. 1.

Referring to FIG. 6, the liquid crystal display device 700 includes a backlight assembly 200, a liquid crystal display panel 300, a printed circuit board 300, and first and second tape carrier packages (hereinafter, TCP). 410, 420.

The backlight assembly 100 includes a light emitting unit 210, a light guide plate 220, at least one optical sheet 230, a reflecting plate 240, and a storage container 250.

The light emitting unit 210 is provided at one side of the light guide plate 220 to generate light, and to receive the lamp 211 and reflect the light emitted from the lamp 211 to reflect the light guide plate ( And a lamp cover 212 provided at 220. The light guide plate 220 emits light in the form of a surface light source by changing a path of light incident from the light emitting unit 210. The optical sheet 230 is disposed on the light guide plate 220 and is emitted by improving characteristics of light incident from the light guide plate 220, for example, brightness increase and brightness uniformity. The reflective plate 240 is provided under the light guide plate 220 to reflect the light leaked from the light guide plate 220.

The storage container 250 accommodates the light emitting unit 210, the light guide plate 220, the optical sheet 230, and the reflecting plate 240. The storage container 250 includes a bottom plate 251 and a side plate 252 extending from the bottom plate 251 to form a storage space. The light guide plate 220, the optical sheet 230, and the reflective plate 240 are seated on the bottom plate 251, and the liquid crystal display panel 300 is seated on the side plate 252. The storage container 250 further includes a guide part 253 extending from an upper end of the side plate 252 to guide the position of the liquid crystal display panel 300.

The backlight assembly 200 further includes a back cover 260 provided on an outer side of the storage container 250. The back cover 260 is made of a metal material to emit heat generated from the light emitting unit 100. The back cover 260 is coupled to the storage container 250 by using screws 271 and 272, and fixes the light emitting unit 210 to the storage container 250.

FIG. 7 is a plan view illustrating a coupling relationship between a printed circuit board and a liquid crystal display panel illustrated in FIG. 6.

6 and 7, the liquid crystal display panel 300 is provided on the backlight assembly 200. The liquid crystal display panel 300, the array substrate 310, the counter substrate 320 facing the array substrate 320, and the liquid crystal interposed between the array substrate 310 and the counter substrate 320. Layer (not shown).

The array substrate 310 includes a plurality of gate lines, a plurality of data lines, and a plurality of pixels. Each gate line GL transmits a gate signal. Each data line DL is insulated from and crosses the gate line GL and transmits a data signal. Each pixel 313 is formed in a pixel region defined by the gate line GL and the data line DL, and outputs a pixel voltage corresponding to the image. The pixel 133 is electrically connected to the gate line GL and the data line DL to electrically switch the thin film transistor 131 for switching the pixel voltage, and the drain electrode of the thin film transistor 131. And a pixel electrode 132 for outputting the pixel voltage.

The printed circuit board 100 is provided on the source side of the liquid crystal display panel 300. In this embodiment, since the printed circuit board 100 is the same as the printed circuit board 100 shown in FIG. 1, duplicate description thereof will be omitted.

1, 2, and 7, the circuit wiring unit 120 of the printed circuit board 100 receives an image signal corresponding to the image and outputs a data control signal and a gate control signal.

The first to third protrusions 112, 113, and 114 of the printed circuit board 100 are disposed adjacent to the array substrate 310. Both ends of the first and second TCPs 410 and 420 are attached to the printed circuit board 100 and the array substrate 310 to electrically connect the printed circuit board 100 and the array substrate 310. Connect with That is, the first TCP 410 is located between the second protrusion 113 and the third protrusion 114, and the second TCP 420 is the first protrusion 112 and the second protrusion. It is located between (113). The first and second TCPs 410 and 420 receive the data control signals from the circuit wiring unit 120, output the data signals to a plurality of data lines, and receive them from the circuit wiring unit 120. The gate control signal is provided to the array substrate 310.

The liquid crystal display 700 further includes first and second gate drivers 430 and 440 for outputting the gate signal. The first and second gate drivers 430 and 440 are formed on the array substrate 310 to be electrically connected to the plurality of gate lines, and face each other with the plurality of pixels interposed therebetween. The first and second gate drivers 430 and 440 receive the gate control signals output from the first and second TCPs 410 and 420 and output the gate signals to the plurality of gate lines.

In addition, the liquid crystal display 700 further includes a control printed circuit board 500 for outputting the image signal. The control printed circuit board 500 is electrically connected to the main connector 181 of the printed circuit board 100, and the circuit wiring unit 120 is connected to the control printed circuit board (181) through the main connector 181. 500) receives the video signal.

In addition, the control printed circuit board 500 is electrically connected to the test connector 182 of the printed circuit board 100. Here, referring to the image quality inspection of the liquid crystal display device 700, the inspection connector 182 is electrically connected to an external image quality inspection device (not shown) so that the test signal from the image quality inspection device may be connected to the circuit wiring unit ( 120, the circuit wiring unit 120 provides the test signal to the array substrate 310 through the first and second TCPs 410 and 420. The liquid crystal display panel 300 displays an image corresponding to the test signal.

The test connector 182 is electrically connected to the first, second, fourth, and fifth antennas 131, 132, 134, and 135 of the printed circuit board 100, so that the test connector 182 is electrically connected to the first, second, and fourth antennas. And transmit data between the fifth antennas 131, 132, 134, and 135 and the control printed circuit board 500. That is, the control printed circuit board 500 receives and stores wireless data from the first, second, fourth, and fifth antennas 131, 132, 134, and 135 through the test connector 182. In addition, the control printed circuit board 500 reads data from a memory embedded in the liquid crystal display 700, and reads the read data from the first, second, fourth, and fourth through the test connector 182. To the fifth antennas 131, 132, 134, 135. The first, second, fourth, and fifth antennas 131, 132, 134, and 135 transmit data received from the control printed circuit board 500 to an external wireless device through a wireless communication network.

As such, the first, second, fourth and fifth antennas 131, 132, 134, and 135 are electrically connected to the control printed circuit board 500 through the inspection connector 182. There is no need to have a connector. In particular, since the inspection connector 182 is not used after the image quality inspection of the liquid crystal display device 700 is completed, its use efficiency is very low. The printed circuit board 100 may connect the first, second, fourth and fifth antennas 131, 132, 134, 135 and the control printed circuit board 500 using the test connector 182. Since data is transmitted, the utilization efficiency of the test connector 182 can be improved.

In one example of the present invention, the control printed circuit board 500 is electrically connected to the sub connector 190 of the printed circuit board 100. That is, the sub connector 190 is mounted on the third protrusion 114 and electrically connected to the third antenna 133 of the printed circuit board 100. The control printed circuit board 500 is electrically connected to the sub connector 190 through a coaxial cable 195, thereby enabling data transmission with the third antenna 133. When the coaxial cable 195 connected to the sub connector 183 is electrically connected to an external device, the third antenna 133 may also transmit data to the external device.

Referring again to FIG. 5, the liquid crystal display device 700 further includes a top chassis 600 that fixes the liquid crystal display panel 300 to the storage container 250. The top chassis 600 covers the edge of the liquid crystal display panel 300 to guide the position of the liquid crystal display panel 300, and is coupled to the storage container 250 to fix the liquid crystal display panel 300. do.

8 is a perspective view illustrating the top chassis illustrated in FIG. 6, and FIG. 9 is a plan view illustrating the display apparatus illustrated in FIG. 6.

8 and 9, the top chassis 700 may include an upper surface 610 having a portion opened and a side surface 620 extending from the upper surface 610 to cover the side surface of the liquid crystal display panel 300. Include. The side surface 620 is formed with a plurality of insertion grooves 621 corresponding to the first to fifth protrusions 112, 113, 114, 115, and 116 of the printed circuit board 100. The fifth protrusions 112, 113, 114, 115, and 116 protrude out of the liquid crystal display panel 300 through the plurality of insertion grooves 621. Accordingly, the first to fifth antennas 131, 132, 133, 134, and 135 formed on the first to fifth protrusions 112, 113, 114, 115, and 116, respectively, form the liquid crystal display panel 300. Exposed to the outside. That is, the first to fifth antennas 131, 132, 133, 134, and 135 are positioned on the upper end and upper side of the liquid crystal display panel 300 having a high radio wave reception rate in plan view.

As described above, since the first to fifth antennas 131, 132, 133, 134, and 135 are exposed to the outside of the liquid crystal display 700, the radio wave reception rate is improved. In addition, the interference of the high frequency generated from the printed circuit board 100 and the control printed circuit board 500 is prevented, and noise of the first to fifth antennas 131, 132, 133, 134, and 135 is prevented. prevent. Accordingly, the data transmission rate using the wireless communication network is improved, the communication reliability is improved, and the quality of service is improved.

FIG. 10 is a side view illustrating the liquid crystal display shown in FIG. 9, and FIG. 11 is a cross-sectional view taken along the line II-II ′ of FIG. 9. 10 is a plan view seen from the side surface 620 of the top chassis 700.

10 and 11, the base 111 of the printed circuit board 100 is provided on the rear surface of the storage container 250, and the first to fifth protrusions 112, 113, 114, and 115 are provided. , 116 is exposed to the outside of the storage container (250).

9 and 10, the top chassis 700 is spaced apart from the first to fifth antennas 131, 132, 133, 134, and 135 so that the first to fifth antennas 131, 132, 133, 134, 135 is insulated. That is, since the top chassis 700 is made of a conductive metal material, when the top chassis 700 is in contact with the first to fifth antennas 131, 132, 133, 134, and 135, the first to fifth antennas 131 may be used. , 132, 133, 134, and 135 may cause noise. To prevent this, the top chassis 700 is spaced apart from the first to fifth protrusions 112, 113, 114, 115, and 116 defining the plurality of insertion grooves 621.

According to the present invention described above, a printed circuit board has an antenna unit for transmitting and receiving data through a wireless communication network, the antenna unit is exposed to the outside of the liquid crystal display panel. Accordingly, noise of the antenna unit due to the high frequency generated during the driving of the liquid crystal display is prevented, data transmission rate using the wireless communication network is improved, and communication reliability is improved.

In addition, since the antenna unit is connected to the control printed circuit board through an inspection connector for inspecting an image quality of the liquid crystal display panel, the use efficiency of the inspection connector may be improved.

Although described with reference to the embodiments above, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

Claims (21)

An insulation layer including a base portion and at least one protrusion portion formed to protrude from a side portion of the base portion; A circuit wiring part formed on the base part and configured to receive a first signal from the outside and output a second signal for driving an external device; At least one antenna formed on the protrusion part and insulated from the circuit wiring part to transmit and receive data through a wireless communication network; And And a connection wiring part formed on the base part to be electrically connected to the antenna and to transmit and receive data from the antenna. The method of claim 1, A first ground layer interposed between the connection wiring portion and the insulating layer; And The printed circuit board further comprises a second ground layer formed on the connection wiring portion. The method of claim 1, A first ground layer interposed between the connection wiring portion and the insulating layer; And And a second ground layer surrounding upper and side portions of the connection wiring part. The method of claim 1, A main connector mounted on the base part and electrically connected to the circuit wiring part, the main connector receiving the first signal and providing the first signal to the circuit wiring part; And The printed circuit board further comprises a test connector mounted on the base part and electrically connected to the circuit wiring part, and receiving a test signal for inspecting the external device from the outside and providing the test signal to the circuit wiring part. . The printed circuit board of claim 4, wherein the connection wiring part is electrically connected to the main connector. The printed circuit board of claim 4, wherein the connection wiring part is electrically connected to the test connector. The method of claim 1, The antenna is provided with a plurality, The insulating layer has a plurality of protrusions, The antennas are each formed on the projections. The method of claim 7, further comprising a sub connector mounted on one of the protrusions and electrically connected to an antenna formed on the protrusion, wherein the antenna connected to the sub connector is insulated from the connection wiring part. Printed circuit board characterized in that. The printed circuit board of claim 1, further comprising a protective layer covering the circuit wiring portion and the antenna. A display panel configured to receive a control signal corresponding to an image and display the image; And A first printed circuit board electrically connected to the display panel to output the control signal; The first printed circuit board, An insulating layer including a base portion and at least a protrusion portion formed to protrude from a side portion of the base portion; A circuit wiring part formed on the base part and receiving an image signal corresponding to the image from the outside and outputting the control signal; At least one antenna formed on the protrusion part and insulated from the circuit wiring part to transmit and receive data through wireless communication; And And a connection wiring part formed on the base part and electrically connected to the antenna to transmit and receive data from the antenna. The display device of claim 10, wherein the protrusion is positioned outside the display panel when viewed in a plan view. The method of claim 10, wherein the first printed circuit board, A first ground layer interposed between the connection wiring portion and the insulating layer; And And a second ground layer formed on the connection wiring part. The method of claim 10, wherein the first printed circuit board, A first ground layer interposed between the connection wiring portion and the insulating layer; And And a second ground layer covering upper and side portions of the connection wiring portion. The method of claim 10, wherein the first printed circuit board, A main connector mounted on the base part and electrically connected to the circuit wiring part to receive the image signal and provide the image signal to the circuit wiring part; And And a test connector mounted on the base unit and electrically connected to the circuit wiring unit, and receiving a test signal for inspecting an image quality of the display panel and providing the test signal to the circuit wiring unit. 15. The apparatus of claim 14, further comprising: electrically connected to the main connector, storing data output from the first printed circuit wiring unit, generating the image signal using the stored data, and printing the image signal to the first print. And a second printed circuit board provided on the circuit board. The display device of claim 15, wherein the connection wiring part is electrically connected to the main connector, and transmits and receives data from the second printed circuit board through the main connector. The display device of claim 13, wherein the connection wiring part is electrically connected to the test connector, and transmits and receives data from the second printed circuit board through the test connector. The method of claim 10, The insulating layer includes a plurality of protrusions, each of the protrusions is formed with the antenna, The first printed circuit board further includes a sub connector provided at any one of the protrusions and electrically connected to an antenna formed at the base of the protrusion. And the antenna connected to the sub connector is insulated from the connection wiring part. The method of claim 10, A storage container accommodating the display panel; And Covering the edge of the display panel to guide the position of the display panel, the insertion groove is formed is formed is a projection, the display is characterized in that it further comprises a top chassis for fixing the display panel in combination with the storage container Device. The display device of claim 10, wherein the protrusion is positioned at an upper end or an upper side of the display panel when viewed in a plan view. A display panel configured to receive a data signal and a gate signal corresponding to an image and display the image; A gate driver configured to receive a gate control signal corresponding to the image and output the gate signal to the display panel; And A data printed circuit board generating the gate control signal and the data control signal in response to an image signal corresponding to the image, and electrically connected to the display panel; The data printed circuit board, An insulation layer including a base portion and at least one protrusion portion formed to protrude from a side portion of the base portion; A circuit wiring part formed on the base part and configured to receive the image signal and output the gate control signal and the data control signal; At least one antenna formed on the protrusion part and insulated from the circuit wiring part to transmit and receive data through wireless communication; And And a connection wiring part formed on the base part and electrically connected to the antenna to transmit and receive data with the antenna.

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